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公开(公告)号：US11486356B2
公开(公告)日：2022-11-01
申请号：US17002954
申请日：2020-08-26
Applicant: General Electric Company
Inventor： Cornelius Edward Holliday, III , Fernando Arturo Ramirez Sanchez , Mathew Doyle Angel , Nathan Michael Killeen , Edward Wayne Hardwicke, Jr. , Steven Wade Sutherland , Robert Gregory Wagoner , Govardhan Ganireddy , Talha Irfanul Haque
Abstract: A system and method are provided for controlling a wind turbine. Accordingly, a controller of the wind turbine detects a loss of traction of the slip coupling between a generator and a rotor of the drivetrain of the wind turbine. In response to detecting the loss of traction, the controller overrides a generator torque setpoint to alter a rotational speed of the generator. In response to the altered rotational speed of the generator, the traction of the slip coupling is increased. Increasing the traction of the slip coupling facilitates an application of generator torque to the drivetrain of the wind turbine.
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公开(公告)号：US11451057B2
公开(公告)日：2022-09-20
申请号：US16647213
申请日：2017-09-15
Applicant: General Electric Company , Rajni Kant Burra , Govardhan Ganireddy , Anthony Michael Klodowski , Wenqiang Yang
Inventor： Rajni Kant Burra , Govardhan Ganireddy , Anthony Michael Klodowski , Wenqiang Yang
Abstract: A method for controlling an electrical power system connected to a power grid includes receiving a reactive power command and a measured reactive power and generating a reactive power error signal based on a difference between the reactive power command and the measured reactive power. Further, the method includes receiving, via a reactive power regulator, the reactive power error signal. Moreover, the method includes generating, via the reactive power regulator, a voltage command based on the error signal. The method also includes generating, via a droop control, a voltage droop signal. In addition, the method includes generating a voltage error signal as a function of the voltage droop signal and at least one of the voltage command or a measured terminal voltage. Thus, the method further includes generating, via a voltage regulator, a reactive current command based on the voltage error signal.
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公开(公告)号：US20210363971A1
公开(公告)日：2021-11-25
申请号：US16880450
申请日：2020-05-21
Applicant: General Electric Company
Inventor： Govardhan Ganireddy , Steven Wade Sutherland , Rajni Kant Burra , Andrej Petricko , Dale Robert Mashtare
Abstract: An electrical system for a wind turbine having a reduced uptower footprint and method for achieving the same are provided. Accordingly, the electrical system includes a plurality of electrical subsystems having a plurality of electrical subsystem assemblies. At least one electrical subsystem assembly is integrated with the generator housing. Additionally, the electrical subsystem assembly is coupled between the stator or the rotor of the generator and the generator output connection. The electrical system incorporating the electrical subsystem assembly with the generator housing has a reduced uptower footprint relative to a nominal design of an electrical system.
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公开(公告)号：US20190140569A1
公开(公告)日：2019-05-09
申请号：US15807861
申请日：2017-11-09
Applicant: General Electric Company
Inventor： Harold Robert Schnetzka , Robert Gregory Wagoner , Govardhan Ganireddy , John Leo Bollenbecker , Michael Christopher Booth , Vaidhya Nath Venkitanarayanan
Abstract: Systems and methods for operating a power system having a doubly fed induction generator are provided. In example implementations, a power system can include a power converter. The power converter can include a line-side converter, a DC link, and a rotor-side converter. The rotor-side converter is configured to convert a DC power on the DC link to an AC signal for a rotor bus. The system can include a control system having one or more control devices. The one or more control devices are configured to operate the rotor-side converter in an overmodulation regime to provide the AC signal for the rotor bus
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公开(公告)号：US10148205B2
公开(公告)日：2018-12-04
申请号：US15422604
申请日：2017-02-02
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Dong Dong , Govardhan Ganireddy , David Smith
IPC: H02M7/53862 , H02M7/5387 , H02P9/00 , H02M3/335 , H02M5/42 , H02M1/084
Abstract: Systems and methods for operating a power converter with a plurality of inverter blocks with silicon carbide MOSFETs are provided. A converter can include a plurality of inverter blocks. Each inverter block can include a plurality of switching devices. The plurality of switching devices can include one or more silicon carbide MOSFETs. A control method can include providing, by a control system, one or more gating commands to a first inverter block in the plurality of inverter blocks. The control method can further include implementing, by the control system, a gating command delay to generate a first delayed gating command based at least in part on the one or more gating commands. The control method can further include providing, by the control system, the first delayed gating command to a second inverter block in the plurality of inverter blocks.
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Patent Agency Ranking
公开(公告)号：US20180342875A1
公开(公告)日：2018-11-29
申请号：US15602193
申请日：2017-05-23
Applicant: General Electric Company
Inventor： Govardhan Ganireddy , Saurabh Shukla , Rajni Burra , Steven Wade Sutherland
Abstract: An electrical power system includes a cluster of electrical power subsystems, each of the electrical power subsystems including a power converter electrically coupled to a generator having a generator rotor and a generator stator. Each of the electrical power subsystems defines a stator power path and a converter power path for providing power to the power grid, the converter power path including a partial power transformer. Each of the electrical power subsystems further includes a low voltage distribution panel electrically coupled to the converter power path, a first switch on the stator power path, and a second switch on the converter power path.
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公开(公告)号：US20180323620A1
公开(公告)日：2018-11-08
申请号：US15588902
申请日：2017-05-08
Applicant: General Electric Company
Inventor： Govardhan Ganireddy , Saurabh Shukla , Rajni Burra , Robert Gregory Wagoner , Anthony Michael Klodowski , Yashomani Kolhatkar
Abstract: An electrical power system includes a cluster of electrical power subsystems, each of the electrical power subsystems including a power converter electrically coupled to a generator having a generator rotor and a generator stator. Each of the electrical power subsystems defines a stator power path and a converter power path for providing power to the power grid. The converter power path includes a partial power transformer. The electrical power system further includes a subsystem breaker configured with each of the electrical power subsystems, and a cluster transformer for connecting each cluster of electrical power subsystems to the power grid. The electrical power system further includes a cluster power path extending between each subsystem breaker and the cluster transformer, and a distortion filter electrically coupled to the cluster transformer. The distortion filter reduces harmonics in current flowing from the electrical power subsystems to the cluster transformer.
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公开(公告)号：US10110149B2
公开(公告)日：2018-10-23
申请号：US15399803
申请日：2017-01-06
Applicant: General Electric Company
Inventor： Robert Gregory Wagoner , Govardhan Ganireddy , Saurabh Shukla , Ravisekhar Nadimpalli Raju , Harold Robert Schnetzka
Abstract: Systems and methods for grounding power generation systems with silicon carbide MOSFET power converters are provided. A power generation system can include a power generator comprising a multiphase rotor configured to generate multiphase alternating current power at a first voltage and a power converter comprising one or more silicon carbide MOSFETs and an isolation transformer. The power converter can be configured to convert the multiphase alternating current power from the power generator at the first voltage to multiphase alternating current power at a second voltage. The power generation system can be electrically grounded to shunt a leakage current associated with the isolation transformer of the power converter to a ground.
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公开(公告)号：US20180187653A1
公开(公告)日：2018-07-05
申请号：US15663603
申请日：2017-07-28
Applicant: General Electric Company
Inventor： Yashomani Y. Kolhatkar , Govardhan Ganireddy , Ravisekhar Nadimpalli Raju , Rajni Kant Burra , Arvind Kumar Tiwari , John Leo Bollenbecker
Abstract: A hybrid power generation system is presented. The system includes a first power generation subsystem including a prime mover driving a generator including a rotor and a stator, one or more first conversion units coupled to at least one of the rotor and the stator, a first direct current (DC) link, and one or more second conversion units coupled to a corresponding one or more first conversion units via the first DC link. The system includes one or more second power generation subsystems coupled to the first power generation subsystem and one or more power conversion subunits including one or more first bridge circuits coupled to a corresponding one or more second bridge circuits via one or more transformers, where at least one of the one or more second power generation subsystems and the first power generation subsystem includes the one or more power conversion subunits.
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公开(公告)号：US09915243B2
公开(公告)日：2018-03-13
申请号：US14625108
申请日：2015-02-18
Applicant: General Electric Company
Inventor： Deepak Raj Sagi , Mark Edward Cardinal , Avijit Saha , Rajni Kant Burra , Govardhan Ganireddy
CPC classification number: F03D7/048 , F03D7/0284 , F03D9/10 , F03D9/11 , F03D9/257 , F05B2260/82 , F05B2270/335 , F05B2270/404 , G05B15/02 , G05B2219/2619 , H02J3/32 , H02J3/386 , Y02E10/723 , Y02E10/763 , Y02E10/766 , Y02E70/30
Abstract: A system for automatic generation control in a wind farm is provided. The system includes a wind farm controller for controlling the plurality of energy storage elements. The wind farm controller receives an automatic generation control set point from an independent system operator, generates a farm-level storage power set point for the wind farm based on the automatic generation control set point, generates individual storage power set points for the plurality of energy storage elements based on states of charge of the respective energy storage elements, and controls the plurality of energy storage elements based on the individual storage power set points for dispatching storage power to perform automatic generation control.
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